Machine for making earthenware pipes.



"No; 799,833. PATENTED SEPT. 19, 1905. H., J. & A. OOULTHURST & M. YARROW & W. R. HAWORTH. MACHINE FOR MAKING BARTHENWARE PIPES.

APPLIOATION FILED MAY 13, 1905.

4 SHEETS-SHEET 1.

'No- 799,833. 3 I PATENTED SEPT. 19, 1905. H., J. &'A. GOULTHURST & M. YARROW & W. R. HAWORTH.

MACHINE FOR MAKING BARTHENWARE PIPES.

APPLICATION FILED MAY 1a, 1905.

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PATENTED SEPT. 19, 1905.

4 SHEETS-SHEET a.

H., J. & A. GOULTHURST & NLYARROW & W. R. HAWORTH.

MACHINE FOR MAKING EARTHBNWARE PIPES.

APPLICATION FILED MAY 13, 1905.

No. 799,833. v PATBNTED SEPT. 19, 1905. H., J. & A. GOULTHURST & M. YARROW & W. R. HAWORTH. MAGHINEFOR MAKING EARTHENWARE PIPES.

APPLICATION mun MAY13. 1905.

4 SHEETS-SHEET 4.

UNITED sTATEs PATENT oEEIoE.

HEMAN OOULTHURST, J ESHURUN OOULTHURST, ARMENA OOULTHURST, OF DARWEN, AND MATTHEW YARROVV AND WALTER RAYMOND HAWORTH, OF BOLTON, ENGLAND, ASSIGNORS TO YARROW AND COMPANY (BOL- TON) LIMITED, OF BOLTON, ENGLAND, AN ENGLISH COMPANY.

MACHINE FOR MAKING EARTHENWARE PIPES- Specification of Letters Patent.

Patented Sept. 19,1905.

Application filed May 13,1905. Serial No. 260,238.

To all whom it may concern.-

Be it known that we, HEMAN CoULTHuRsT, residing at No. 1 Avondale road, JEsHURUN OoULTHURsT, residing at No. 51 Blackburn road, ARMENA OoULTHURsT, residing at No. 7 Amelia road, Darwen, MATTHEW YARROVV, residing at No. 9 Ivy road, and WALTER RAY- MOND HAwoRTH, residing at No. 16 Ivy road, Smithills, Bolton, in the county of Lancaster, England, subjects of the King of Great Britain, have invented certain new and useful Imp rovements in Machines for Making Earthenware Pipes, of which the following is a speciiication.

In the manufacture of pipes or mains of earthenware and of those produced primarily of similar plastic substances wherein pressure-exerting mechanism is employed for forcing the substances through molds which form or shape their outer surfaces, while internal cores produce the desired forms or shapes of openings through them, it is found that by the methods heretofore followed in the cutting off and shaping of the spigot ends of the pipes thus produced great irregularities and often undesirable malformations occur in these parts.

To obviate these disadvantages and produce means whereby the spigot ends of the pipes or mains, whether of the ordinary kind extensively made use of or of the kind as illustrated in the accompanying sheets of drawings and as hereinafter described, may be as evenly and efficiently made or shaped and with as great precision as are those of the other ends or parts of such pipes or mains is the object of our present invention.

By explaining the construction and arrangement of the several parts of our improved machine as when used in the production of pipes or mains having laterally-projecting flanges and indentations it will readily be understood how same may be advantageously employed in the production of simpler or more common forms of pipes or mains. For this reason we will proceed to describe same as when so used.

Figure 1 is a longitudinal section of a pipe or main, showing one of the classes of same that may be produced by our improved mechanism. Fig. 2 is a sectional front elevation showing the molds and core for producing the the core.

several parts of a pipe or main, as hereinafter explained. These are shown in the relative positions they occupy at the commencement of the pressing or manufacture of a pipe. Fig. 3 is a side elevation of the devices employed for opening and closing the molds or dies. Fig. 4 is part-sectional front elevation of a machine known as a steam-operated press with our improved parts added thereto. The parts of the machine that are omitted from the drawing are of the old and wellknown kind. Fig.5 is a similar view to Fig. 4, but shows an alternative arrangement for operating the part in the machine known as Fig. 6 is a similar view to part of Fig. 2 and illustrates a modification in the formation of a certain part hereinafter ex plained. Fig. 7 is a sectional view on line a a of the parts shown by Fig. 6 and as seen from above.

Like letters and figures of reference indicate like parts throughout the several views.

In the production of pipes or mains of the shape shown by Fig. 1 of the drawings it will be observed that theradial flanges at the spigot end of same could not be withdrawn from the molds in the direction in which the body or straight part of said pipe is forced or pressed. Hence the mold must be withdrawn from the pipe. Again, by gro0ves'be' ing made in the radial flanges on said pipe it will also be observed that the molds, although made in parts, may not entirely be withdrawn therefrom in a lateral direction. Hence in addition to the ordinary movements of the parts forming the pressing mechanism additional movements have to be transmitted to the parts from which the pipe must be relieved or freed to enable its discharge in a perfect condition fromthe machine. The steam-cylinder S, its piston 23, the supports w w, the side pillars 14, the rising and falling table 17 its counterbalancing weights 2?, chains a, and the pulleys 41 supporting same are all of an old and well-known formation, and their several functions are well understood.

The substance, as clay, of which the pipes are to be formed is fed in at the top of the cylinder 4, through. which itis pressed by the piston 21 as this is forced down therein by the steam-piston 23, to which it is coupled by the connecting-rods 22 22, said piston 21 being arranged to takeover and slide=upon the I rod 20 for a certain space, but afterward to raise same by coming into contact with the nut 25 thereon, as will be hereinafter explained. The core 18, which is-to formthe' central opening through the resultant pipe, as is well understood, issupported by the rod 20, which has its upper end retained in the bearing 3/, in which it is allowed, freedom=to move from its position shown .in full lines,

Fig. 5,(below which it is held from descending during the formation of the pipe,) to its position shown in broken lines of the-same figure for purposes hereinafter explained, while the lower end of said rod 20 passes through bearings 26, which afford lateral support thereto and guide the parts in their proper paths. As the clay is pressed by the piston 21 it descends through the cylinder 1 and passes through the annular passage intervening between the upper and lower parts of the moldsa and 6a'nd the core 18 until said annular passage and the annular space between the mold 16 and the lower edge 0 of the outer mold is entirely filled by such compressed clay. Thus the socket end of the pipe to be produced is formed, and during its said formation the clay will have been-so firmly pressed within the molds that -it will' have filled all the annular passageabove referred to, so that at such time the projecting flanges on the spigot end of the pipe will core 18 and the part 6 6 of the mold the proper length of body part of the pipe is produced, on which the further descent of the table 17 is prevented, and the pipe stands thereon completely formed with the exception of its attach:

ment to the clay above. To sever such at: tachment, steam is admitted to the cylinder S onthe lower side of the piston 23, so as to cause said piston to rise andbring with it the piston 21, and as this thus rises it comes in contactwiththe nut 25 on the rod 20, and so brings withit said rod20 and its core 18, which it lifts or raises to the position shown in .broken lines, Fig. 5. As this core18 thus rises and passes through the annular opening in the plate 24 (which it fills, but through which it is made to slide freely) it will be seen that it will have cut through the clay and entirely freed the spigot end of the pipe from any connection with the clay above, although the pipe is still retained in the mold a 6 c, from which it must be liberated to enable its withdrawal from the-ma-.

chine. To eflect this, the molda 6 0 is formed in halves by being divided-vertically, as shown by Fig. 3, (the meeting edges of each being situated exactly in the vertical plane of the molds axial center), so that each half of the :mold mayslidelaterally upon 4 connectingrrods 9 and 10, which are connected to the separate halves of the molds a 6 c by the pivotal connections 7 and 8, respectively,carry said halves in opposite directions, and so move them entirely free of the pipe, which'is now free to descend on the further descent of the table 17 being commenced, at which time.it may be removed from the machine.

It will be observed that the formation of the groove in the annular flange by the employment of the ring or annular piece 5 en-v ables all themovements above described to be freely carried out, since saidpiece 5 is held'in position by simply taking loosely into an annular recess made in the two halves of the molds a 6 0, so that when these latter are separated or moved apart said piece 5 is liberated and may descend with the pipe as .it is lowered by the further lowering of its table 17, above described, the removal of the piece 5 from the pipe thus produced being then carried 'out-bythe operative, or, if desired, instead of this piece 5 being made loose or detachable from the machine it may be secured by screws to the bearings 2 and the molds a 6 0 be notched to take over and under the piece 5, as shown by Figs. 6 and 7 The two halves of the mold a 6 c are coupled to, so as to be operated by, the eccentrics, as before described.

Instead of securing the core 18 to the rod 20 this rod 20 may be firmly fixed inposition, as shown by,-Fig. 1, and the core 18 may be secured to the end of a sleeve 19, taking .over said rod 20, while the piston 21 will take over said sleeve 19and operatesame by the-annular flangeat the upper .end of it (said sleeve 19) as it operates the rod 20 .by the nut 25, hereinbefore described.

Havingrnow particularly described and ascertained the nature of our said invention and in what manner the same is to be performed, we declare that what we claim is 1. In machines of the class described, means whereby the newly-formed pipe may be cut off from the substance of which it is produced, bythe withdrawal of the core in said machines substantially as herein specified.

2. In a machine of the class described a clay feeding and pressing piston, separable molds through which saidclayis forced, a core having a limited vertical movement, and a cutter adapted to act upon the clay upon the withdrawali of said core.

3. Ina machine of the class described separable molds, means for operating said molds, a core having a limited vertical movement, and a cutter adapted to separate the pipe from the substance from which it is formed by the withdrawal of the said core.

4:. ln machines for making earthenware pipes, a clay-pressing piston, means for operating same, a cylinder for said piston to operate within, a core for forming the interior opening through the pipe being made, bearings for said core arranged to allow a vertical movement to be transmitted to said core,means for transmitting said movement and means for forming or shaping the outer surface of the gipie being made, substantially as herein speci- 5. In machines for making earthenware pipes, clay pressing or forcing mechanism, a mold through which said, clay is forced, a core situated in an appropriate position relatively with said mold, means for operating said core so that it may be used for cutting off the clay from the pipe produced as said core passes through said mold, and means for forming the other parts of said pipe substantially as herein specified.

6. In machines for making earthenware pipes, clay pressing or forcing mechanism, molds formed to allow said clay to be forced through them, said molds being formed in parts to enable their detachment from the pipe when formed, a movable core for forming the interior of the pipe and means for operating said movable core to cut off the clay substantially as herein specified.

7. In machines for making earthenware pipes, clay pressing or'forcing mechanism, molds formed to allowsaid clay to be forced through them, said molds being formed in parts to enable their detachment from the resultant pipe, means for effecting their detachment, a movable core for forming the interior part of said pipe, and means for operating said core substantially as herein set forth.

8. In machines for making earthenware pipes, clay pressing or forcing mechanism, molds formed to allow said clay to be-forced through them,means for operating said molds, a ring or annular part formed to make an annular furrow or groove in one or other of the annular flanges on the pipe, means for supporting said ring, a core for forming the interior part of said pipe, and means for operating said core substantially as herein speci-' fied.

In testimony whereof we have aflixed our signatures in presence of two witnesses.

HEMAN COULTHURST. JESHURUN OOULTHURST. ARMENA GOULTHURST. MATTHEW YARROW.

WALTER RAYMOND HAWOR'IH.

Witnesses:

SAMUEL HEY, JOHN WHITEHEAD. 

